I always got Denise Richards and Rebecca Greyhart mixed up in the 90s. Denise Richards was VERY famous from her movie "Wild Things." It was the rage of anyone sexually active in the 90s.
Lisa Rinna. Not sure about the look. I think she looks way cuter with her iconic shag hair. I also didn't like how her lips were lined. She had a thick beige/pink line on her top lip, which I didn't really get. Ericka also had nude lipstick, but hers looked really good.
Camille is on a huge high horse, and in season 1 she presented herself as someone better than everyone. At the time I thought it was because she was married to Grammar who is highly regarded as talented as an actor. But she is still the same way, long after Grammar basically said she was hell to live with, and it's almost worse. That said, it was kind of shitty Andy pitting Camille (who tried to get everything possible) and Denise (who was super kind) against each other and their divorces. I think Camille is a keen and sharp business lady. I think Denise is happy with some sunshine and a big dick and weed. Charlie and Grammar are so different. Charlie is all about being sleazy, where Grammar is all about being the intellect. So they married people that supported their images.
I don't think Camille is intelligent. I do think she is more aware of her image and values looking intelligent. I don't think Denise really thinks about whether she looks intelligent. She does want people to know she is getting laid, however, and her kids have a dad. I don't think Denise is any more intelligent than Camille, she just has a different lifestyle.